leviticus 18:6-16

6 None of you shall approach anyone near of kin to uncover nakedness: I am the Lord.
7You shall not uncover the nakedness of your father, which is the nakedness of your mother; she is your mother, you shall not uncover her nakedness.
8You shall not uncover the nakedness of your fathers wife; it is the nakedness of your father.
9You shall not uncover the nakedness of your sister, your fathers daughter or your mothers daughter, whether born at home or born abroad.
10You shall not uncover the nakedness of your sons daughter or of your daughters daughter, for their nakedness is your own nakedness.
11You shall not uncover the nakedness of your fathers wifes daughter, begotten by your father, since she is your sister.
12You shall not uncover the nakedness of your fathers sister; she is your fathers flesh.
13You shall not uncover the nakedness of your mothers sister, for she is your mothers flesh.
14You shall not uncover the nakedness of your fathers brother, that is, you shall not approach his wife; she is your aunt.
15You shall not uncover the nakedness of your daughter-in-law: she is your sons wife; you shall not uncover her nakedness.
16You shall not uncover the nakedness of your brothers wife; it is your brothers nakedness.